Control method of gas stove and corresponding device

Abstract

The application relates to a control method and a control device of a gas stove, which are applied to the gas stove, the gas stove comprising an ignition system, a solenoid valve, a battery and a thermoelectric power generation device; the method comprises the following steps: after detecting an ignition signal of the ignition system, supplying power to the solenoid valve by the battery to control the solenoid valve to be in an open state; collecting a voltage sequence of the thermoelectric power generation device according to a preset first collection frequency; determining an average voltage value of a preset number of target voltages in the collected voltage sequence, the target voltage being a voltage closest to the current time in the voltage sequence; if the determined voltage average value is greater than or equal to a preset power supply voltage value, switching the battery to the thermoelectric power generation device to supply power to the solenoid valve, and keeping the solenoid valve in the open state. The application embodiment realizes that the sudden flameout situation is avoided in the process of switching the power supply.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of switching power supply for gas stove, and particularly relates to a control method of gas stove and a corresponding device. BACKGROUND

[0002] At present, the household gas stove refers to the kitchen appliance for direct heating by using gas fuel such as liquefied petroleum gas (liquid), artificial gas and natural gas. When the gas stove is working, the gas enters the stove from the gas pipe, is adjusted by the gas valve and enters the burner, and at the same time, a part of air is mixed in, and the mixed gas is ignited by the ignition system to form the flame, and the flame is used to heat the cookware placed on the pot support.

[0003] The electronic elements (for example, the electromagnetic valve) in the gas stove are usually powered by the battery or the thermoelectric power generation device, but in the process of switching the power supply, the sudden extinguishing problem is prone to occur. SUMMARY

[0004] In view of the defects of the prior art, the present application provides a control method of gas stove and a corresponding device, so as to solve the technical problem that the gas stove is prone to sudden extinguishing in the process of switching the power supply.

[0005] In a first aspect, the embodiments of the present application provide a control method of gas stove, applied to the gas stove, the gas stove comprising an ignition system, an electromagnetic valve, a battery and a thermoelectric power generation device; the method comprises: after detecting an ignition signal of the ignition system, supplying power to the electromagnetic valve by the battery to control the electromagnetic valve to be in an open state; collecting a voltage sequence of the thermoelectric power generation device according to a preset first collection frequency; determining an average voltage value of a preset number of target voltages in the collected voltage sequence, the target voltage being the voltage closest to the current time in the collection time; if the determined voltage average value is greater than or equal to a preset power supply voltage value, switching the battery to the thermoelectric power generation device to supply power to the electromagnetic valve, and keeping the electromagnetic valve in the open state.

[0006] As an optional implementation, the method further comprises: if the determined voltage average value is less than the preset power supply voltage value, continuing to supply power to the electromagnetic valve by the battery, and keeping the electromagnetic valve in the open state.

[0007] As an optional implementation, the method further comprises: in the case of supplying power to the electromagnetic valve by the thermoelectric power generation device, determining the average voltage of the preset number of target voltages in the collected voltage sequence; if the determined voltage average value is less than the power supply voltage value, switching the thermoelectric power generation device to the battery to supply power to the electromagnetic valve, and keeping the electromagnetic valve in the open state.

[0008] As an optional implementation, the method further comprises: if the determined average voltage value is less than the power supply voltage value, then the voltage abnormality number is incremented by 1; if the voltage abnormality number is greater than a preset prompt number, then a fault prompt is output, the voltage abnormality number is set to 0, and the electromagnetic valve is closed.

[0009] As an optional implementation, the gas stove further comprises an ion sensing needle, and before the step of collecting the voltage sequence of the thermoelectric power generation device according to the preset first collection frequency, the method further comprises: collecting a current ion concentration by the ion sensing needle; if the current ion concentration is less than a preset target ion concentration, then the step of collecting the voltage sequence of the thermoelectric power generation device according to the preset first collection frequency is performed; if the current ion concentration is greater than or equal to the target ion concentration, then the battery is controlled to stop power supply, and the electromagnetic valve is controlled to be in a closed state to extinguish the gas.

[0010] In a second aspect, an embodiment of the present application provides a control device of a gas stove, applied to a gas stove, the gas stove comprising an ignition system, an electromagnetic valve, a battery and a thermoelectric power generation device; the control device comprising: a battery power supply module, configured to supply power to the electromagnetic valve through the battery after detecting an ignition signal of the ignition system, and control the electromagnetic valve to be in an open state; a first collection module, configured to collect a voltage sequence of the thermoelectric power generation device according to a preset first collection frequency; a first determination module, configured to determine an average voltage value of a preset number of target voltages in the collected voltage sequence, the target voltages being voltages closest in time to a current time in the voltage sequence; and a switching module, configured to switch the battery to the thermoelectric power generation device to supply power to the electromagnetic valve and keep the electromagnetic valve in the open state if the determined average voltage value is greater than or equal to a preset power supply voltage value.

[0011] As an optional implementation, the control device further comprises a first comparison module, configured to continue to supply power to the electromagnetic valve through the battery and keep the electromagnetic valve in the open state if the determined average voltage value is less than the preset power supply voltage value.

[0012] As an optional implementation, the control device further comprises: a second determination module, configured to determine an average voltage of a preset number of target voltages in the collected voltage sequence in the case of power supply to the electromagnetic valve by the thermoelectric power generation device; and a second comparison module, configured to switch the battery to the thermoelectric power generation device to supply power to the electromagnetic valve and keep the electromagnetic valve in the open state if the determined average voltage value is less than the power supply voltage value.

[0013] As an optional implementation, the control device further comprises: a third comparison module configured to increase the voltage abnormality number by 1 if the determined voltage average value is less than the power supply voltage value; and a fourth comparison module configured to output a fault prompt, reset the voltage abnormality number to 0, and close the electromagnetic valve if the voltage abnormality number is greater than a preset prompt number.

[0014] As an optional implementation, the gas stove further comprises an ion sensing needle, and the control device further comprises: a second acquisition module configured to acquire a current ion concentration through the ion sensing needle before the first acquisition module acquires the voltage sequence of the thermoelectric power generation device at the preset first acquisition frequency; a fifth comparison module configured to perform the step of acquiring the voltage sequence of the thermoelectric power generation device at the preset first acquisition frequency if the current ion concentration is less than a preset target ion concentration; and a sixth comparison module configured to control the battery to stop power supply and control the electromagnetic valve to be in a closed state to extinguish the gas if the current ion concentration is greater than or equal to the target ion concentration.

[0015] The application provides a control method of a gas stove and a corresponding device, and embodiments of the application provide technical solutions with at least the following beneficial effects:

[0016] The battery is used to supply power to the electromagnetic valve first, and then the thermoelectric power generation device is switched to supply power to the electromagnetic valve, so that the power consumption of the battery can be reduced.

[0017] The voltage value of the thermoelectric power generation device is acquired, and the thermoelectric power generation device is switched to supply power after the voltage value of the thermoelectric power generation device meets the requirement of the power supply voltage, so that the availability of the voltage value output by the thermoelectric power generation device can be effectively ensured, the circuit failure caused by a low voltage value output by the thermoelectric power generation device can be avoided, and the state of flame burning can be maintained.

[0018] After the thermoelectric power generation device is switched to supply power, the voltage value of the thermoelectric power generation device is acquired, the average value of the voltage values in a preset acquisition period is determined, and the determined average value of the voltage values is compared with a preset power supply voltage value, so that the operation of switching to battery power supply when the voltage value fluctuates to a low peak can be avoided, and the stability of the power supply source can be improved.

[0019] The voltage output data of the thermoelectric power generation device is acquired and compared with a target voltage value, so that the normal operation of the gas stove can be ensured within the failure range, the failure of the auxiliary power supply can be prompted when the failure range is exceeded, and the reliability of the power supply source can be further improved.

[0020] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Figure 1 The first flowchart of the control method of the gas stove provided by the embodiment of the present application;

[0023] Figure 2 The second flowchart included in the control method of the gas stove provided by the embodiment of the present application;

[0024] Figure 3 The third flowchart of the control method of the gas stove provided by the embodiment of the present application;

[0025] Figure 4 The fourth flowchart of the control method of the gas stove provided by the embodiment of the present application;

[0026] Figure 5 The fifth flowchart of the control method of the gas stove provided by the embodiment of the present application;

[0027] Figure 6 The frame diagram of the structure of the control device of the gas stove provided by the embodiment of the present application.

[0028] Corresponding explanation of the reference signs:

[0029] 100: battery power supply module;

[0030] 200: first acquisition module;

[0031] 300: first determination module;

[0032] 400: switching module. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application.

[0034] The terms appearing in the embodiments of the present application will be explained and described below:

[0035] The thermoelectric power generation device is a solid-state energy conversion method that converts temperature difference (thermal energy) into electrical energy according to the Seebeck effect principle. The thermoelectric power generation device has no chemical reaction and mechanical movement, and has no noise, pollution, wear and long service life. The core component of the thermoelectric power generation device is a semiconductor thermoelectric couple module (also known as a semiconductor refrigeration sheet because it is often used for refrigeration). The thermoelectric power generation device usually uses a thermoelectric power generation sheet. When there is a sufficient temperature difference on both sides of the thermoelectric power generation sheet, a certain amount of direct current will be generated, and the size of the direct current is related to the size of the temperature difference on both sides, and of course is closely related to the specification of the thermoelectric power generation sheet.

[0036] As shown in Figure 1 The embodiment of the present application provides a control method of a gas stove. The control method of the gas stove is applied to the gas stove, and the gas stove comprises an ignition system, a solenoid valve, a battery and a thermoelectric power generation device. The control method of the gas stove mainly comprises steps S1-S4:

[0037] Step S1: after detecting the ignition signal of the ignition system, the battery supplies power to the solenoid valve, and the solenoid valve is controlled to be in an open state.

[0038] After the user starts the ignition system, the ignition system outputs an ignition signal, the battery supplies power to the solenoid valve, and the solenoid valve is in an open state to realize gas flow and ignition.

[0039] Step S2: collect the voltage sequence of the thermoelectric power generation device according to a preset first collection frequency.

[0040] The output voltage of the thermoelectric power generation device can be detected by a voltage detection device connected with the thermoelectric power generation device.

[0041] Optionally, the collection frequency is 10 times per second, that is, the voltage data of the thermoelectric power generation device is collected every 0.1 seconds.

[0042] In one possible embodiment, the gas stove further comprises a storage unit, which can store the collected voltage sequence of the thermoelectric power generation device.

[0043] Step S3: in the collected voltage sequence, the average voltage value of a preset number of target voltages is determined, and the target voltage is the voltage closest to the current time in the voltage sequence.

[0044] When the temperature difference becomes larger and larger, the output voltage of the thermoelectric power generation device becomes larger and larger, and by determining the average voltage value of the preset number of target voltages, the state of the output voltage of the thermoelectric power generation device can be determined.

[0045] Optionally, the preset number is 10.

[0046] Step S4: If the determined average voltage is greater than or equal to the preset power supply voltage, the battery is switched to the thermoelectric generator to supply power to the solenoid valve, keeping the solenoid valve in the open state.

[0047] If the determined average voltage is greater than or equal to the preset power supply voltage, it can be determined that the output voltage of the thermoelectric generator is appropriate, that is, the output voltage of the thermoelectric generator is relatively stable and the output voltage can meet the requirement of keeping the solenoid valve open to ensure the normal operation of the gas stove.

[0048] This application provides a method for controlling a gas stove. First, power is supplied to the solenoid valve via a battery, and then the power supply to the solenoid valve is switched from the battery to a thermoelectric generator. This reduces the power consumption of the battery.

[0049] By collecting the voltage value of the thermoelectric generator and switching the battery to power the thermoelectric generator once the voltage of the thermoelectric generator meets the power supply requirements, the availability of the output voltage value of the thermoelectric generator can be effectively ensured, avoiding circuit failure caused by the low output voltage value of the thermoelectric generator and maintaining the flame combustion state.

[0050] like Figure 2 As shown, as an optional implementation, the gas stove control method further includes step S5:

[0051] If the determined average voltage is less than the preset power supply voltage, the solenoid valve will continue to be powered by the battery to keep it in the open state.

[0052] If the determined average voltage is less than the preset power supply voltage, it can be determined that the output voltage of the thermoelectric generator has not met the requirement of keeping the solenoid valve open. In order to ensure the normal operation of the gas stove, the battery continues to supply power to the solenoid valve.

[0053] like Figure 3 As shown, as an optional implementation, the gas stove control method further includes steps S6-S7:

[0054] Step S6: When power is supplied to the solenoid valve through the thermoelectric generator, determine the average voltage of a preset number of target voltages from the collected voltage sequence.

[0055] Step S7: If the determined average voltage is less than the supply voltage, the thermoelectric generator switches to the battery to supply power to the solenoid valve, keeping the solenoid valve in the open state.

[0056] After the battery is switched to the thermoelectric generator, the voltage value of the thermoelectric generator is collected, the average value of the voltage value in the preset collection period is determined, and the determined average value of the voltage value is compared with the power supply voltage value, so that the switching to the battery power supply operation caused by the voltage value fluctuating to the low peak can be avoided, and the stability of the power supply can be improved.

[0057] As shown in Figure 4 , as an optional implementation, the control method of the gas stove further includes steps S8-S9:

[0058] Step S8: If the determined average value of the voltage is less than the power supply voltage value, the number of voltage abnormalities is incremented by 1.

[0059] Step S9: If the number of voltage abnormalities is greater than the preset number of prompts, a fault prompt is output, the number of voltage abnormalities is set to 0, and the solenoid valve is closed.

[0060] By collecting the voltage output data of the thermoelectric generator and comparing it with the target voltage value, the normal operation of the gas stove within the allowable failure range can be ensured, and the failure of the power supply can be prompted when it exceeds the failure range, further improving the reliability of the power supply.

[0061] As shown in Figure 5 , as an optional implementation, the gas stove further includes an ion sensing needle, and before collecting the voltage sequence of the thermoelectric generator at the preset first collection frequency, the control method of the gas stove further includes steps S20-S40:

[0062] Step S20: Collect the current ion concentration through the ion sensing needle.

[0063] After the battery supplies power to the solenoid valve, so that the solenoid valve is in an open state, the current ion concentration is detected by the ion sensing needle to determine whether the gas is ignited.

[0064] Step S30: If the current ion concentration is less than the preset target ion concentration, the step of collecting the voltage sequence of the thermoelectric generator at the preset first collection frequency is executed.

[0065] Optionally, the target ion concentration is -50 millivolts.

[0066] If the current ion concentration is less than the preset target ion concentration, it means that the gas is burning to a healthy state and can be used by the user, which requires the battery valve to remain in an open state. In order to switch to the thermoelectric generator power supply, it is necessary to start detecting the power generation state of the thermoelectric generator.

[0067] Step S40: If the current ion concentration is greater than or equal to the target ion concentration, the battery is controlled to stop supplying power, and the solenoid valve is controlled to be in a closed state to extinguish the gas.

[0068] If the current ion concentration is greater than or equal to the target ion concentration, it indicates that the gas is combusted to an abnormal state and cannot be used by the user, and the battery is controlled to stop power supply to control the electromagnetic valve to be in the closed state.

[0069] It should be understood that, although Figures 1 to 5 The steps in the flowchart of the method are shown in sequence according to the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, Figures 1 to 5 At least part of the steps in the method can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily sequential, but can be alternately executed with at least part of other steps or steps or stages in other steps.

[0070] It can be understood that the same / similar parts between the above-mentioned embodiments of the method in the specification can be mutually referred to, and each embodiment focuses on the differences from other embodiments, and the related parts can be referred to the description of other method embodiments.

[0071] As Figure 6 shown, based on the same inventive concept, the embodiment of the present application provides a control device of a gas stove, which is applied to a gas stove, the gas stove comprising an ignition system, an electromagnetic valve, a battery and a thermoelectric power generation device; the control device of the gas stove comprises a battery power supply module 100, a first acquisition module 200, a first determination module 300 and a switching module 400. The battery power supply module 100 is used to supply power to the electromagnetic valve through the battery after detecting the ignition signal of the ignition system, and control the electromagnetic valve to be in the open state; the first acquisition module 200 is used to acquire a voltage sequence of the thermoelectric power generation device at a preset first acquisition frequency; the first determination module 300 is used to determine an average voltage value of a preset number of target voltages in the acquired voltage sequence, the target voltage being the voltage closest to the current time in the voltage sequence; the switching module 400 is used to switch the battery to the thermoelectric power generation device to supply power to the electromagnetic valve if the determined average voltage value is greater than or equal to a preset power supply voltage value, and keep the electromagnetic valve in the open state.

[0072] The embodiment of the present application provides a control device of a gas stove, which first supplies power to the electromagnetic valve through the battery, and then switches the battery to the thermoelectric power generation device to supply power to the electromagnetic valve, which can reduce the power consumption of the battery.

[0073] By collecting the voltage value of the thermoelectric power generation device, and switching the power supply from the battery to the thermoelectric power generation device when the voltage of the thermoelectric power generation device meets the requirement of the power supply voltage, the availability of the output voltage value of the thermoelectric power generation device can be effectively ensured, and the circuit failure caused by the low output voltage value of the thermoelectric power generation device and the sudden engine stall caused by the circuit failure can be avoided.

[0074] After switching the power supply from the battery to the thermoelectric power generation device, by collecting the voltage value of the thermoelectric power generation device, determining the average voltage value in the preset collection period, and comparing the determined average voltage value with the preset power supply voltage value, the operation of switching to the battery power supply when the voltage value fluctuates to a low peak can be avoided, and the stability of the power supply can be improved.

[0075] As an optional implementation, the control device of the gas stove further includes a first comparison module, which is configured to continue to supply power to the electromagnetic valve by the battery if the determined average voltage value is less than the preset power supply voltage value, and keep the electromagnetic valve in the open state.

[0076] As an optional implementation, the control device of the gas stove further includes a second determination module and a second comparison module. The second determination module is configured to determine the average voltage of a preset number of target voltages in the collected voltage sequence when the thermoelectric power generation device supplies power to the electromagnetic valve. The second comparison module is configured to switch the power supply from the thermoelectric power generation device to the battery to supply power to the electromagnetic valve if the determined average voltage value is less than the power supply voltage value, and keep the electromagnetic valve in the open state.

[0077] As an optional implementation, the control device of the gas stove further includes a third comparison module and a fourth comparison module. The third comparison module is configured to increase the voltage abnormality count by 1 if the determined average voltage value is less than the power supply voltage value. The fourth comparison module is configured to output a fault prompt, reset the voltage abnormality count to 0, and close the electromagnetic valve if the voltage abnormality count is greater than a preset prompt count.

[0078] As an optional implementation, the gas stove further includes an ion sensing needle, and the control device of the gas stove further includes a second collection module, a fifth comparison module, and a sixth comparison module. The second collection module is configured to collect the current ion concentration by the ion sensing needle before the first collection module 200 collects the voltage sequence of the thermoelectric power generation device at the preset first collection frequency. The fifth comparison module is configured to execute the step of collecting the voltage sequence of the thermoelectric power generation device at the preset first collection frequency if the current ion concentration is less than a preset target ion concentration. The sixth comparison module is configured to control the battery to stop supplying power and control the electromagnetic valve to be in the closed state to extinguish the gas if the current ion concentration is greater than or equal to the target ion concentration.

[0079] The application provides a control method and a corresponding device for a gas stove.

[0080] First, the solenoid valve is powered by the battery, and then the solenoid valve is powered by the thermoelectric generator device switched from the battery, so that the power consumption of the battery can be reduced.

[0081] By collecting the voltage value of the thermoelectric generator device, and switching the power supply from the battery to the thermoelectric generator device when the voltage of the thermoelectric generator device meets the requirement of the power supply voltage, the availability of the output voltage value of the thermoelectric generator device can be effectively ensured, the circuit failure caused by the low voltage value output by the thermoelectric generator device can be avoided, and the state of flame burning can be maintained.

[0082] After switching from the battery to the thermoelectric generator device, the voltage value in the preset collection period is determined by collecting the voltage value of the thermoelectric generator device, and the determined voltage value average is compared with the preset power supply voltage value, so that the operation of switching to battery power supply when the voltage value fluctuates to a low peak can be avoided, and the stability of the power supply source can be improved.

[0083] By collecting the voltage output data of the thermoelectric generator device and comparing it with the target voltage value, the normal operation of the gas stove can be ensured within the allowable failure range, and the auxiliary power supply failure can be prompted when the failure range is exceeded, thereby further improving the reliability of the power supply source.

[0084] The specific limitations of the control device for the gas stove can be referred to the limitations of the control method for the gas stove in the above, which will not be repeated here. Each module in the above control device for the gas stove can be realized by software, hardware and their combination in whole or in part. The above modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the above modules.

[0085] It should be noted that, in this document, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0086] The various embodiments in the specification are described in a related manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, the system embodiments are described simply because they are basically similar to the method embodiments, and the related parts can be referred to the part of the method embodiments.

[0087] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the specification.

[0088] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A method for controlling a gas stove, characterized in that, The method is applied to a gas stove, the gas stove including an ignition system, a solenoid valve, a battery, and a thermoelectric generator; the method includes: After detecting the ignition signal of the ignition system, the battery supplies power to the solenoid valve, controlling the solenoid valve to be in the open state; The voltage sequence of the thermoelectric generator is collected according to a preset first acquisition frequency; In the acquired voltage sequence, the average voltage value of a preset number of target voltages is determined, wherein the target voltage is the voltage in the voltage sequence whose acquisition time is closest to the current time; If the determined average voltage is greater than or equal to the preset power supply voltage, the battery switches to the thermoelectric generator to supply power to the solenoid valve, keeping the solenoid valve in the open state. If the determined average voltage is less than the preset power supply voltage, then power will continue to be supplied to the solenoid valve through the battery to keep the solenoid valve in the open state; When the thermoelectric generator supplies power to the solenoid valve, the average voltage of a preset number of target voltages is determined from the collected voltage sequence; if the determined average voltage is less than the supply voltage value, the thermoelectric generator switches to the battery to supply power to the solenoid valve, keeping the solenoid valve in the open state.

2. The control method according to claim 1, characterized in that, The method further includes: If the determined average voltage is less than the supply voltage value, the number of voltage anomalies is incremented by 1; If the number of voltage anomalies exceeds the preset number of alerts, a fault alert is output, the number of voltage anomalies is set to 0, and the solenoid valve is closed.

3. The control method according to claim 1, characterized in that, The gas stove also includes an ion sensing needle. Before acquiring the voltage sequence of the thermoelectric generator according to a preset first acquisition frequency, the method further includes: The current ion concentration is collected using the ion sensing needle. If the current ion concentration is less than the preset target ion concentration, then the step of collecting the voltage sequence of the thermoelectric generator at a preset first collection frequency is executed. If the current ion concentration is greater than or equal to the target ion concentration, the battery is controlled to stop supplying power, and the solenoid valve is controlled to be in the closed state, so that the gas is extinguished.

4. A control device for a gas stove, characterized in that, It is applied to a gas stove to execute the control method of the gas stove as described in any one of claims 1-3; the gas stove includes an ignition system, a solenoid valve, a battery, and a thermoelectric generator; the control device includes: The battery power supply module (100) is used to supply power to the solenoid valve through the battery after detecting the ignition signal of the ignition system, and control the solenoid valve to be in an open state. The first acquisition module (200) is used to acquire the voltage sequence of the thermoelectric generator according to a preset first acquisition frequency; The first determining module (300) is used to determine the average voltage value of a preset number of target voltages in the acquired voltage sequence, wherein the target voltage is the voltage in the voltage sequence whose acquisition time is closest to the current time; The first comparison module is used to continue supplying power to the solenoid valve through the battery and keep the solenoid valve in the open state if the determined average voltage value is less than the preset power supply voltage value. The switching module (400) is used to switch the battery to the thermoelectric generator to supply power to the solenoid valve if the determined average voltage value is greater than or equal to the preset power supply voltage value, and keep the solenoid valve in the open state. The second determining module and the second comparing module are configured to determine the average voltage of a preset number of target voltages in the collected voltage sequence when the thermoelectric generator supplies power to the solenoid valve; the second comparing module is configured to switch the thermoelectric generator to supply power to the solenoid valve via the battery if the determined average voltage is less than the supply voltage value, thereby keeping the solenoid valve in the open state.

5. The control device according to claim 4, characterized in that, The control device further includes: The third comparison module is used to increment the number of voltage anomalies by 1 if the determined average voltage value is less than the supply voltage value. The fourth comparison module is used to output a fault prompt, set the number of voltage abnormalities to 0, and close the solenoid valve if the number of voltage abnormalities is greater than the preset number of prompts.

6. The control device according to claim 4, characterized in that, The gas stove also includes an ion sensing needle, and the control device also includes: The second acquisition module is used to acquire the current ion concentration through the ion sensing needle before the first acquisition module (200) acquires the voltage sequence of the thermoelectric generator according to a preset first acquisition frequency; The fifth comparison module is used to execute the step of acquiring the voltage sequence of the thermoelectric generator at a preset first acquisition frequency if the current ion concentration is less than the preset target ion concentration. The sixth comparison module is used to control the battery to stop supplying power and control the solenoid valve to be closed if the current ion concentration is greater than or equal to the target ion concentration, so as to extinguish the gas.

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